Control and operation

Working with the machine

11

12

Move safety lever up. Switch off electric motor of machine. Remove the ignition key.

31

32

Go to the external control unit. If necessary, walk around the machine to avoid climbing over power cable.

Activate automatic mode: turn key of switch 1 to 12. Manual operation of motor cable drum with controls is activated. Key in switch 1 is locked.

Suppression of tensile cable interference

Notice!

Loosening of windings on motor cable drum with controls! Damage.

Do not let the cable sink to the ground.

Ensure that no one is in the work area of the machine, of the motor cable drum with controls or of the power cable.

Select movement of motor cable drum with controls with switch 3:

3 to 31

3 to 32.

Observe illuminated indicator light.

Once indicator light goes out: stop movement.

Reactivating automatic mode

Caution!

Unexpected movement of motor cable drum with controls! Crushing, injuries.

Maintain safety distance to motor cable drum with controls.

Turn key of switch 1 to 11

Remove key from switch.

3.4.5Video monitoring for motor cable drum with controls (option)

The screen installed in the operator's cab makes it possible to monitor the motor cable drum with controls. The following safety rules apply to the use of video surveillance: rect visual monitoring of the cable.

Danger!

Crushing or tearing off the power cable! Damage, electric shock, danger to life. Ensure proper operation of the motor cable drum with controls through direct visual monitoring.

3.4.6Travel warning device (option)

Fig. 3-81 Travel warning device

Push the drive pedal 5 or 6 The travel warning device switches on automatically. An acoustic signal (warning tone) is produced.

Deactivation of the drive warning device:

Caution!

If a magnetic system LIEBHERR AMERICA (LAM) is mounted, the drive warning device is controlled by the button S5R on left-hand joystick 4 instead of the button S6R

Press the button S6R on right-hand joystick 3 The drive warning device is deactivated.

Note!

The drive warning device can only be deactivated 10 seconds after starting to drive. If the drive pedal is engaged once more, the drive warning device will reactivate.

3.4.7Uppercarriage swing movements

The swing movements of the uppercarriage are controlled by the left joystick 4.

Caution!

The joystick functions described below refer to the normal control, fitting out the machine at delivery.and according to ISO-standards, On machines equiped in addition with a special control system, and if this special control system is activated by the operator, the joystick functions correspond to the information on the label which is sticked on the side window of the cab and is specific to the installed special control system.

Push the left joystick 4 to the left c: the uppercarriage rotates to the left.

Push the joystick to the right d: the uppercarriage rotates to the right.

Braking the uppercarriage

The machine is equipped as well with an hydraulic as with a mechanical swing brake. The hydraulic swing brake

Let the left joystick 4 move back to neutral position. The hydraulically swing braking of the uppercarriage takes place. In normal working conditions, the braking efficiency is sufficient to bring the uppercarriage to a standstill rapidly.

Move the left joystick 4 in the opposite direction. The maximum hydraulic braking action of the uppercarriage is achieved. The mechanical swing brake

The mechanical brake is a negatively acting multidisc brake which is integrated in the swing gear. It allows to stop the uppercarriage in any desired position (for parking, when working on a slope, ...).

Press the touch S17. the red LED beside the touch is lighting. the swing brake is applied.

Press the touch S17 again. the red LED beside the touch goes out. The swing gear brake is in mode semi-automatic and can now be controlled as follows by the rocker switch S57:

Tilt down the rocker switch S57 on the joystick handle, the brake is applied when the uppercarriage is at standstill, respectively it applies as soon as the uppercarriage speed gets lower than a limit value.

Tilt up the rocker switch S57, the brake remains released permanently.

Note!

The red LED beside the touch S17 is lighting in any case when the brake is applied. If this light does not go out when the rocker switch S57 is tilted up, the button S17 must first be pushed to pre-select the semi-automatic mode.

Caution!

The brake only applies when the uppercarriage is near standstill and if no swing motion is actuated via the joystick! In order to stop the uppercarriage when working on a slope, tilt the switch S57 down and reduce the uppercarriage speed by braking with joystick 4. Move the joystick 4 back to «0» position only after the brake has applied.

Ermergency stop of the uppercarriage swing motion

The swing brake can be applied independently of the uppercarriage RPM by switching the button S17 from position «semi-automatic» into position «applied».

Caution

Perform this braking via button S17 only exceptionaly, i. e. in emergency cases, since it causes fast abrasion of the brake discs.

To check the mechanical swing gear brake:

When the uppercarriage is stationary. Press the touch S17. the swing brake is applied. the LED in the touch is lighting.

Push the left joystick 4 to the right and then to the left as far as the stop. If the swing brake function is OK, the uppercarriage does not start swinging.

The positioning swing brake (option)

The positioning swing brake is used for progressive and sensitive braking of the upper carriage.